Door bolt and lock



Oct. 30, 1934. A, WILSQDNA 1,978,615

- DooR BOLT AND LOCK Filed March 17, 1934 z5 Wilson Patented oct. 3o, 1934 .UNITED STATES PATENT OFFICE' 3 Claims.

This invention relates-to door bolts and door locks and has for an important object thereof the provision of a combined door bolt and lock which can be used for either motor vehicles or hinged doors in buildings or the like.

An object of this invention is to provide an improved type of door bolt and lock which is so constructed that the bolt can be held in locked position by means disposed on one side of the door and preferably, the inside of the door, so that where the device is used in motor vehicles, all except one of the doors in the vehicle may be easily and quickly locked from the inside of the vehicle in a manner to prevent turning of the knob or bolt operating member.

VA further object of this invention is to provide in a bolt and lock of this type means whereby the operating mechanism for the bolt and lock can be easily lubricated from a point outside of the housing for the bolt and locking mechanism.

A still further object of this invention is to provide an improved locking means for the bolt which will render the knob or handle inoperative.

Still another object of this invention is to provide a sliding bolt of the segmental or arcuate type, which -is mounted in a housing, of a character that may be mounted in any suitable type of door such as the door of a building or a motor vehicle.

The above and various other objects and advantages of this invention will in part be described and in part be understood from the following detailed description of the present pre ferred embodiment, the same being illustrated in the accompanying drawing wherein:

Figure 1 is a detail side elevation partly in section of a device constructed according to the embodiment of this invention, showing the device with the cover plate removed from the housing so as to expose the operative mechanism therefor.

. Figure 2 is an enlargedfragmentary sectional view taken on the line 2,-2 of Figure 1.

' Figure 3 is a sectional view partly in detail taken on the line 3-3 of Figure 1.

Figure 4 is a sectional view taken on the line 4 -4 of Figure 1.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral l0 designates generally a housing which, in the present instance, is constructed in rectangular form with aside plate 11, bottom and, top walls 12 and 13, respectively, and front and rear walls 14 and 15, respectively. A removable side plate K or cover 16 is secured to the Walls 12, 13, 14 and 15 so'as to enclose the mechanism although the device may-be used with the plate 16 removed therefrom in certain types of door structures.

A door bolt, generally designated at 17, isslidablymounted in the housing 10, and this bolt 17,

. in the present instance, is constructed of longitudinally arcuate conguration with one end 18 projecting through an opening 19 provided in the front wall 14 of the housing. A pair lof guide lugs 20 are secured to the side wall 11 and engage the bolt 17 adjacent the inner end thereof and coact with the sides of the opening 19 to slidably mount the bolt 17 in the housing 10. The bolt 17 at a point intermediate its length is provided with a recessed portion 21, and a bolt operating member or cam 22 is mounted on a shaft 23 which extends through the housing 10 and through an elongated arcuate slot 24 provided in the bolt 17. This bolt operating member 22, in the present instance, engages against the shoulder 25 formed at the vrear end of the recessed portion 21 and the cam portion 26 of this operating member 22 is curved so that when the shaft 23 is rotated, the cam portion 26 will engage against the shoulder 25 and retract the bolt 17.

A spring 27 has one end thereof engaged about a stud or pin 28 secured to the bottom wall 12 and the other end of the spring 27 engages about a reduced portion 29 carried by the inner end of the bolt 17 so that the bolt 17 will be constantly urged outwardly into operative position.

The `shaft 23, in the present instance, is provided with angular faces `for a portion ofits length and with a round surface disposed within the elongated slot 24 so that the shaft 23 may be rotated to retract the bolt 17. It is, of course, understood that either or both ends of the shaft 23 may have knobs or levers mounted thereon so as to facilitate turning .of the cam member 23.

In order to lock the bolt 17 and also lock the cam member 22 so that the knob or handle cannot be turned, I have provided a locking member or bar 30 which .has its upper end slidably disposed between a pair of spaced guide lugs 31 and its lower end slidably disposed in an upstanding lug 32 provided with a guide opening 33. The locking member 30 has an inclined upper face portion 34 which confronts a flat face of the bolt operating member 22, and when the locking member 30 is in its locking position, the inclined face 34 will be disposed closely adjacent the flat face portion 35 of the cam, member 22. The bolt 17 has an extension 36 on the inner side thereof which is provided withfa notch or` recess 37 within which the upper end of the lock- 4 ing member'30 is adapted to engage so as to hold the bolt 17 against retraction under the movement of the operating member 22.

In order to provide means for holding the locking member 30 in locked position, I have provided a lever 38 which is pivoted at one end, as at 39, to the locking member 30 and is provided on one edge thereof with an outstanding lug 40 provided with a V-'shaped key engaging face 41. The lug 40 is disposed at a point upwardly from.the lower end of the lever 38 so that when the locking member 30 is in released position, the lever 38 will have its lower end thereof disposed in the recess 33.

A spring 42, which has one end thereof disposed in a slot 43 provided in a lug 44 secured to the inside face of the front wall 14 presses against the lever 38 and constantly urges this lever 38 into locked position. At a point intermediate its length, the spring 42 is disposed between a pair of lugs 45 secured to the side wall 11. The spring 42, in the present instance, is constructed from a substantially straight `piece of resilient material and is bowed, as shown in Figure 1, with the inner end thereof contacting against the adjacent side of the lever 38. The lug 32 is provided with a seat 46 on one side of the opening or recess v33, which seat is adapted to be engaged by the lower end of the lever 38 when this lever is in locked position. When the lever 38 engages the seat 46, the locking bar 30 is held in its uppermost or locking position.

In Figure 4, I have shown a releasing member for the locking lever 38, which releasing member is in the form of a key 47 having one portion 48 thereof disposed in an opening in the side wall 11. The stem or shank of the key 47, in the present instance, has a knob or operating member 49 secured thereto.` A plate 50 is secured to the side plate 16 andis loosely disposed about the shank of the key 47 and engages the inner end of the knob 49. In the form of locking and releasing means shown in Figure 4, the door bolt 17 is locked and released from one side of the housing 10 and preferably the side on the inside of the door. Where, however, it is vdesired to lock or unlock the locking lever 38 from the I opposite sidel or from both sides of the housing 18 will engage in the keeper provided in the frame of the door. When it is desired to lock the door bolt 17 against movement, the knob 49 can be turned so as to swing the operating bit 47 so that this operating bit will raise the locking lever 38 to a point where the lower end thereof will be in substantial alinement with the bottom of the seat 46, at which point the spring 42 will act to swing the lever 38 outwardly of the recess 33 and onto the seat 46. In this position, the locking member 30 will engage the notched portion 37 of the' door bolt 17 and thisbolt'17 will then be held ment.

The door bolt 17 is provided on the peripheral edge portion thereof with a-lubricating groove 51 against inward move'- which terminates at a point slightly beyond the outer face of the iront wall 14 so that oil may enter the groove 51 and flow downwardly. The bolt 17 is provided with a plurality of vertically disposed lubricating channels 52 which communicate with the groove 51 so that the oil ilowing down the groove 51 will also pass downwardly in the channels 52 and lubricate the inside face of the recess 21 and will 'also flow downwardly over the locking bolt 30.

It will be apparent from the foregoing that the bolt and lock hereinbefore described may be used in connection with any conventional type of swinging door, that is, a door on a vehicle, or the door of a building, and while I have shown in Figure 4 one form of a releasing means on one side of the housing which, in the present instance is the inside, I do not wish to be limited to this construction, as in instances where the device is mounted in a door of a building or the like, or in the fourth door of a vehicle, the locking and releasing means shown in Figure 4 wil1 be'substituted by a conventional tumbler or lock operating means. By the fourth" door, it will be understood that three doors of a four-door sedan will have the locking means shown in Figure 4 while the fourth" door will have a substitute operating mechanism for the locking member 30.

What is claimed ist- 1. A combined door bolt and lock, comprising a housing, a spring pressed bolt slidable in the housing and having a lubricating channel extending inwardly from the outer end and terminating in a channel on one side thereof, a bolt operating member, said bolt having a notch intermediate its length, a locking member engageable in said notch to hold the bolt against sliding movement, means for slidably mounting said locking member in the housing for movement toward or away from the bolt, a locking lever engaging against one side of said locking member, means for swingably securing said lever to said locking member, a lever seat carried by the housing for holding the lever in locked position, means constantly 'urging said lever toward said seat, and a key engaging means carried by said lever whereby to move said lever into operative or inoperative position. f

2. A combined door bolt and lock, comprising a housing, a spring pressed bolt slidable in the housing, a bolt operating member, said bolt having a notch intermediate its length and a' lubricating groove communicating with said operating member, a bolt locking member adapted to engage in said notch, means for slidably mounting said locking member in the housing, a holding lever for said locking member, means engaging one end of said lever to swingably mount said lever on said locking member, a recessed member carried by said housing adapted to receive an end of said locking member and an end of said lever, said recessed member having a lever seat adjacent the outer end of the recess to hold the locking member in locking position within said notch, a spring carried Aby the housing and engaging the lever to constantly urge theA lever toward said seat, a V-shaped lug carried by said lever, and an operating ybit carried by the housing 'for engagement with said .V-shaped lug to swing said lever into operative or inoperative position.

l3. A combined door bolt and lock, comprising a. housingka spring pressed bolt slidable in the housing, said bolt being of longitudinally arcuate u conguration with the inner end thereof, extending in the direction of the bottom of the housing, said bolt having an elongated curved slot therein.

a shaft carried by the housingextending through said slot., said bolt having a recessed portion intermediate its length, a cam membercarried by the shaft and engaging against one end of said recess and adapted upon turning of said shaft in one direction to retract said bolt, said bolt having a,

peripheral lubricating groove therein and a plurality of lubricating channels disposed Within the recess, an extension carried by the bolt intermediate its length and provided with a notch, a locking member for said bolt, means for slidably mounting said locking member in the housing for engagement in said notch when in locked position, A

said locking member having a width such that the cam member is held against movement when the locking member is in locked position, a locking lever swingably carried by said locking member,

EGBERT A. WILSON. 

